#435 Fix conflict between package object and case class with same name

Author: DarkDimius

src/dotty/tools/dotc/typer/Checking.scala

@@ -232,7 +232,8 @@ trait Checking {
 
   /** Check that type `tp` is stable. */
   def checkStable(tp: Type, pos: Position)(implicit ctx: Context): Unit =
-    if (!tp.isStable) ctx.error(d"$tp is not stable", pos)
+    if (!tp.isStable)
+      ctx.error(d"$tp is not stable", pos)
 
   /** Check that type `tp` is a legal prefix for '#'.
    *  @return The type itself

src/dotty/tools/dotc/typer/Namer.scala

@@ -411,7 +411,7 @@ class Namer { typer: Typer =>
             case _ =>
           }
         }
-      for (mdef @ ModuleDef(name, _) <- stats) {
+      for (mdef @ ModuleDef(name, _) <- stats if !mdef.mods.is(Flags.Package)) {
         val typName = name.toTypeName
         val Thicket(vdef :: (mcls @ TypeDef(_, impl: Template)) :: Nil) = mdef.attachment(ExpandedTree)
         moduleDef(typName) = mcls

src/dotty/tools/dotc/typer/RefChecks.scala

@@ -395,7 +395,8 @@ object RefChecks {
 
         for (member <- missing) {
           val memberSym = member.symbol
-          def undefined(msg: String) = abstractClassError(false, member.showDcl + " is not defined" + msg)
+          def undefined(msg: String) =
+            abstractClassError(false, member.showDcl + " is not defined" + msg)
           val underlying = memberSym.underlyingSymbol
 
           // Give a specific error message for abstract vars based on why it fails:

test/dotc/tests.scala

@@ -149,7 +149,7 @@ class tests extends CompilerTest {
 
   @Test def dotc_printing = compileDir(dotcDir + "tools/dotc/printing")
 
-  @Test def dotc_reporting = compileDir(dotcDir + "tools/dotc/reporting", twice)
+  @Test def dotc_reporting = compileDir(dotcDir + "tools/dotc/reporting")
 
   @Test def dotc_typer = compileDir(dotcDir + "tools/dotc/typer", failedOther)
     // error: error while loading Checking$$anon$2$,